<nav class="navbar navbar-default" id="selflynav">
  <div class="container"> 
    <!--左侧导航部分-->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-func" aria-expanded="false"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button>
      <a href="__ROOT__" class="navbar-brand">首页</a> <span id="pagename" class="navbar-brand"></span> </div>
  </div>
</nav>